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            <h1>GPT-ネオックスでテキストを生成</h1>
<p>これは、単一のGPUでGPT-Neoxからテキストを生成する方法を示しています。</p>
<p>これには、45 GB 以上のメモリを搭載した GPU が必要です。</p>

        </div>
        <div class='code'>
            <div class="highlight"><pre><span class="lineno">15</span><span></span></pre></div>
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    <div class='section' id='section-1'>
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                <a href='#section-1'>#</a>
            </div>
            <p>輸入</p>

        </div>
        <div class='code'>
            <div class="highlight"><pre><span class="lineno">16</span><span class="kn">from</span> <span class="nn">typing</span> <span class="kn">import</span> <span class="n">List</span>
<span class="lineno">17</span>
<span class="lineno">18</span><span class="kn">import</span> <span class="nn">torch</span>
<span class="lineno">19</span><span class="kn">from</span> <span class="nn">torch</span> <span class="kn">import</span> <span class="n">nn</span>
<span class="lineno">20</span>
<span class="lineno">21</span><span class="kn">from</span> <span class="nn">labml</span> <span class="kn">import</span> <span class="n">monit</span>
<span class="lineno">22</span><span class="kn">from</span> <span class="nn">labml_nn.neox.model</span> <span class="kn">import</span> <span class="n">LayerGenerator</span>
<span class="lineno">23</span><span class="kn">from</span> <span class="nn">labml_nn.neox.utils</span> <span class="kn">import</span> <span class="n">get_tokens</span><span class="p">,</span> <span class="n">print_tokens</span>
<span class="lineno">24</span><span class="kn">from</span> <span class="nn">labml_nn.neox.utils.cache</span> <span class="kn">import</span> <span class="n">get_cache</span></pre></div>
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    <div class='section' id='section-2'>
        <div class='docs'>
            <div class='section-link'>
                <a href='#section-2'>#</a>
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            <p>ロードするレイヤーのリスト。これはテストに使用されます。<code  class="highlight"><span></span><span class="p">{</span><span class="mi">0</span><span class="p">,</span> <span class="mi">1</span><span class="p">}</span></code>
のようにレイヤーのサブセットを割り当てて、最初のレイヤーのみをトランスフォーマーレイヤーに読み込むことができます</p>。

        </div>
        <div class='code'>
            <div class="highlight"><pre><span class="lineno">29</span><span class="n">LAYERS</span> <span class="o">=</span> <span class="kc">None</span></pre></div>
        </div>
    </div>
    <div class='section' id='section-3'>
        <div class='docs'>
            <div class='section-link'>
                <a href='#section-3'>#</a>
            </div>
            <p>完了を促すプロンプト</p>

        </div>
        <div class='code'>
            <div class="highlight"><pre><span class="lineno">32</span><span class="n">PROMPT</span> <span class="o">=</span> <span class="s1">&#39;Einstein was born in the German Empire, but moved to Switzerland in 1895, forsaking his German&#39;</span></pre></div>
        </div>
    </div>
    <div class='section' id='section-4'>
        <div class='docs doc-strings'>
            <div class='section-link'>
                <a href='#section-4'>#</a>
            </div>
            <h3>次のトークンを予測</h3>
<ul><li><code  class="highlight"><span></span><span class="n">model</span></code>
モデルです</li>
<li><code  class="highlight"><span></span><span class="n">ids</span></code>
は入力トークン ID</li>
<li><code  class="highlight"><span></span><span class="n">device</span></code>
モデルのデバイスです</li></ul>

        </div>
        <div class='code'>
            <div class="highlight"><pre><span class="lineno">35</span><span class="k">def</span> <span class="nf">infer</span><span class="p">(</span><span class="n">model</span><span class="p">:</span> <span class="n">nn</span><span class="o">.</span><span class="n">Module</span><span class="p">,</span> <span class="n">ids</span><span class="p">:</span> <span class="n">List</span><span class="p">[</span><span class="nb">int</span><span class="p">],</span> <span class="n">device</span><span class="p">:</span> <span class="n">torch</span><span class="o">.</span><span class="n">device</span><span class="p">):</span></pre></div>
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    <div class='section' id='section-5'>
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                <a href='#section-5'>#</a>
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        </div>
        <div class='code'>
            <div class="highlight"><pre><span class="lineno">44</span>    <span class="k">with</span> <span class="n">torch</span><span class="o">.</span><span class="n">no_grad</span><span class="p">():</span></pre></div>
        </div>
    </div>
    <div class='section' id='section-6'>
        <div class='docs'>
            <div class='section-link'>
                <a href='#section-6'>#</a>
            </div>
            <p>トークンを入手</p>

        </div>
        <div class='code'>
            <div class="highlight"><pre><span class="lineno">46</span>        <span class="n">x</span> <span class="o">=</span> <span class="n">torch</span><span class="o">.</span><span class="n">tensor</span><span class="p">(</span><span class="n">ids</span><span class="p">)[</span><span class="kc">None</span><span class="p">,</span> <span class="p">:]</span><span class="o">.</span><span class="n">to</span><span class="p">(</span><span class="n">device</span><span class="p">)</span></pre></div>
        </div>
    </div>
    <div class='section' id='section-7'>
        <div class='docs'>
            <div class='section-link'>
                <a href='#section-7'>#</a>
            </div>
            <p>評価モデル</p>

        </div>
        <div class='code'>
            <div class="highlight"><pre><span class="lineno">48</span>        <span class="n">x</span> <span class="o">=</span> <span class="n">model</span><span class="p">(</span><span class="n">x</span><span class="p">)</span></pre></div>
        </div>
    </div>
    <div class='section' id='section-8'>
        <div class='docs'>
            <div class='section-link'>
                <a href='#section-8'>#</a>
            </div>
            <p>予測トークンを返す</p>

        </div>
        <div class='code'>
            <div class="highlight"><pre><span class="lineno">51</span>    <span class="k">return</span> <span class="n">x</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span><span class="o">.</span><span class="n">max</span><span class="p">(</span><span class="n">dim</span><span class="o">=-</span><span class="mi">1</span><span class="p">)[</span><span class="mi">1</span><span class="p">]</span><span class="o">.</span><span class="n">tolist</span><span class="p">()</span></pre></div>
        </div>
    </div>
    <div class='section' id='section-9'>
        <div class='docs doc-strings'>
            <div class='section-link'>
                <a href='#section-9'>#</a>
            </div>
            <h2>テキストを生成</h2>

        </div>
        <div class='code'>
            <div class="highlight"><pre><span class="lineno">54</span><span class="k">def</span> <span class="nf">generate</span><span class="p">():</span></pre></div>
        </div>
    </div>
    <div class='section' id='section-10'>
        <div class='docs'>
            <div class='section-link'>
                <a href='#section-10'>#</a>
            </div>
            <p><a href="../utils/cache.html">生成を高速化するために中間キーと値のペアをキャッシュするようにキャッシュを設定</a></p>

        </div>
        <div class='code'>
            <div class="highlight"><pre><span class="lineno">60</span>    <span class="n">cache</span> <span class="o">=</span> <span class="n">get_cache</span><span class="p">()</span>
<span class="lineno">61</span>    <span class="n">cache</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s1">&#39;use_cache&#39;</span><span class="p">,</span> <span class="kc">True</span><span class="p">)</span></pre></div>
        </div>
    </div>
    <div class='section' id='section-11'>
        <div class='docs'>
            <div class='section-link'>
                <a href='#section-11'>#</a>
            </div>
            <p>端末</p>

        </div>
        <div class='code'>
            <div class="highlight"><pre><span class="lineno">64</span>    <span class="n">device</span> <span class="o">=</span> <span class="n">torch</span><span class="o">.</span><span class="n">device</span><span class="p">(</span><span class="s1">&#39;cuda:0&#39;</span><span class="p">)</span></pre></div>
        </div>
    </div>
    <div class='section' id='section-12'>
        <div class='docs'>
            <div class='section-link'>
                <a href='#section-12'>#</a>
            </div>
            <p>レイヤーをロード</p>

        </div>
        <div class='code'>
            <div class="highlight"><pre><span class="lineno">67</span>    <span class="n">layers</span> <span class="o">=</span> <span class="nb">list</span><span class="p">(</span><span class="n">LayerGenerator</span><span class="p">(</span><span class="n">is_clone_layers</span><span class="o">=</span><span class="kc">True</span><span class="p">,</span>
<span class="lineno">68</span>                                 <span class="n">filter_layers</span><span class="o">=</span><span class="n">LAYERS</span><span class="p">,</span>
<span class="lineno">69</span>                                 <span class="n">dtype</span><span class="o">=</span><span class="n">torch</span><span class="o">.</span><span class="n">float16</span><span class="p">,</span>
<span class="lineno">70</span>                                 <span class="n">device</span><span class="o">=</span><span class="n">device</span><span class="p">,</span>
<span class="lineno">71</span>                                 <span class="p">)</span><span class="o">.</span><span class="n">load</span><span class="p">())</span>
<span class="lineno">72</span>
<span class="lineno">73</span>    <span class="n">model</span> <span class="o">=</span> <span class="n">nn</span><span class="o">.</span><span class="n">Sequential</span><span class="p">(</span><span class="o">*</span><span class="n">layers</span><span class="p">)</span></pre></div>
        </div>
    </div>
    <div class='section' id='section-13'>
        <div class='docs'>
            <div class='section-link'>
                <a href='#section-13'>#</a>
            </div>
            <p>トークン ID を取得</p>

        </div>
        <div class='code'>
            <div class="highlight"><pre><span class="lineno">76</span>    <span class="n">ids</span> <span class="o">=</span> <span class="n">get_tokens</span><span class="p">(</span><span class="n">PROMPT</span><span class="p">)</span></pre></div>
        </div>
    </div>
    <div class='section' id='section-14'>
        <div class='docs'>
            <div class='section-link'>
                <a href='#section-14'>#</a>
            </div>
            <p>モデルを実行</p>

        </div>
        <div class='code'>
            <div class="highlight"><pre><span class="lineno">79</span>    <span class="n">cache</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s1">&#39;state_ids&#39;</span><span class="p">,</span> <span class="p">(</span><span class="kc">None</span><span class="p">,</span> <span class="mi">1</span><span class="p">))</span>
<span class="lineno">80</span>    <span class="k">with</span> <span class="n">monit</span><span class="o">.</span><span class="n">section</span><span class="p">(</span><span class="s1">&#39;Infer&#39;</span><span class="p">):</span>
<span class="lineno">81</span>        <span class="n">next_token</span> <span class="o">=</span> <span class="n">infer</span><span class="p">(</span><span class="n">model</span><span class="p">,</span> <span class="n">ids</span><span class="p">,</span> <span class="n">device</span><span class="p">)[</span><span class="o">-</span><span class="mi">1</span><span class="p">]</span></pre></div>
        </div>
    </div>
    <div class='section' id='section-15'>
        <div class='docs'>
            <div class='section-link'>
                <a href='#section-15'>#</a>
            </div>
            <p>予測トークンを追加</p>

        </div>
        <div class='code'>
            <div class="highlight"><pre><span class="lineno">84</span>    <span class="n">ids</span> <span class="o">+=</span> <span class="p">[</span><span class="n">next_token</span><span class="p">]</span></pre></div>
        </div>
    </div>
    <div class='section' id='section-16'>
        <div class='docs'>
            <div class='section-link'>
                <a href='#section-16'>#</a>
            </div>
            <p>トークンを100個予測する</p>

        </div>
        <div class='code'>
            <div class="highlight"><pre><span class="lineno">87</span>    <span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span> <span class="mi">100</span><span class="p">):</span></pre></div>
        </div>
    </div>
    <div class='section' id='section-17'>
        <div class='docs'>
            <div class='section-link'>
                <a href='#section-17'>#</a>
            </div>
            <p>キャッシュされたアクティベーションを使用するように状態を設定します</p>

        </div>
        <div class='code'>
            <div class="highlight"><pre><span class="lineno">89</span>        <span class="n">cache</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s1">&#39;state_ids&#39;</span><span class="p">,</span> <span class="p">(</span><span class="n">i</span><span class="p">,</span> <span class="n">i</span> <span class="o">+</span> <span class="mi">1</span><span class="p">))</span></pre></div>
        </div>
    </div>
    <div class='section' id='section-18'>
        <div class='docs'>
            <div class='section-link'>
                <a href='#section-18'>#</a>
            </div>
            <p>次のトークンを入手してください。以前のトークンのキーと値のペアをキャッシュするので、最後のトークンのみをモデルにフィードすることに注意してください</p>。

        </div>
        <div class='code'>
            <div class="highlight"><pre><span class="lineno">92</span>        <span class="k">with</span> <span class="n">monit</span><span class="o">.</span><span class="n">section</span><span class="p">(</span><span class="s1">&#39;Infer&#39;</span><span class="p">):</span>
<span class="lineno">93</span>            <span class="n">next_token</span> <span class="o">=</span> <span class="n">infer</span><span class="p">(</span><span class="n">model</span><span class="p">,</span> <span class="p">[</span><span class="n">next_token</span><span class="p">],</span> <span class="n">device</span><span class="p">)[</span><span class="o">-</span><span class="mi">1</span><span class="p">]</span></pre></div>
        </div>
    </div>
    <div class='section' id='section-19'>
        <div class='docs'>
            <div class='section-link'>
                <a href='#section-19'>#</a>
            </div>
            <p>予測トークンを追加</p>

        </div>
        <div class='code'>
            <div class="highlight"><pre><span class="lineno">95</span>        <span class="n">ids</span> <span class="o">+=</span> <span class="p">[</span><span class="n">next_token</span><span class="p">]</span></pre></div>
        </div>
    </div>
    <div class='section' id='section-20'>
        <div class='docs'>
            <div class='section-link'>
                <a href='#section-20'>#</a>
            </div>
            <p>プリント</p>

        </div>
        <div class='code'>
            <div class="highlight"><pre><span class="lineno">97</span>        <span class="n">print_tokens</span><span class="p">(</span><span class="n">ids</span><span class="p">,</span> <span class="p">[</span><span class="n">ids</span><span class="p">])</span></pre></div>
        </div>
    </div>
    <div class='section' id='section-21'>
        <div class='docs'>
            <div class='section-link'>
                <a href='#section-21'>#</a>
            </div>
            <p></p>

        </div>
        <div class='code'>
            <div class="highlight"><pre><span class="lineno">101</span><span class="k">if</span> <span class="vm">__name__</span> <span class="o">==</span> <span class="s1">&#39;__main__&#39;</span><span class="p">:</span>
<span class="lineno">102</span>    <span class="n">generate</span><span class="p">()</span></pre></div>
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